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| Number | Title | Issue Date |
| 7400716 | Multifunctional intercom system with message recording/retrieval functions A multifunctional intercom system having message recording/retrieval functions, a remote control unit, and music playing capabilities, wherein the various buttons are labeled in Braille for use by hearing impaired individuals. The intercom system comprises a main co... | 07/15/2008 |
| 7362699 | Data distribution network and method for managing a breakdown in said network A device for distributing information and its fault management process which improves the robustness of a network, such as in an aircraft, a boat, or a train. The device or process includes one or more splitters of which an upstream input output is linked to a first... | 04/22/2008 |
| 7292682 | Method and telecommunication system for transmitting a facsimile message A method and system for transmitting a facsimile message uses a public-switched telecommunications network, the public-switched telecommunication network having a messaging platform capable of storing a plurality of facsimile messages. The initiation of a telephone ... | 11/06/2007 |
| 7236579 | Universal call-log system and method for a home network telephone A system and method are provided for maintaining a universal call-log in a Home Network telephone system. The method comprises: transceiving calls on at least one external telephone line; bridging calls to a plurality Home Network endpoints; and, logging the bridged... | 06/26/2007 |
| 7218708 | Internet facilitated emergency and general paging system A plurality of displaced paging systems can be controlled from a common paging facility via a computer network such as the Internet. Real-time streaming audio can be transmitted, via the network to one or more identified facilities and/or zones and broadcast therein... | 05/15/2007 |
| 7174003 | Method and system for troubleshooting a security system's telephone lines A system and method of troubleshooting a communication connection for a remotely located security system is disclosed. A communication line test unit is incorporated into the remote security system and its communication unit. A central control unit can then contact ... | 02/06/2007 |
| 7138945 | Method and apparatus for selecting a foghorn blast pattern A marine vessel (102) is operable to emit an audible signal based upon the velocity status of the marine vessel (102). The marine vessel (102) includes a first processor component (340) operable to determine the velocity of the vehicle ba... | 11/21/2006 |
| 7136457 | Aircraft cabin telephony test unit A test unit for an aircraft cabin telephony system includes a pair of connectors for inserting the test unit in-line within the system; an AC voltage module that is operative to indicate the presence of an AC voltage when the test unit is connected to the Cabin Deli... | 11/14/2006 |
| 7113578 | Vandal proof intercom system for apartment buildings An electronic apartment station intercom unit, housed in a vandal proof enclosure, providing a means for a tenant to communicate with apartment building main entrance door panel and means to unlock said door. This unit has a power storage unit that enables this unit... | 09/26/2006 |
| 7085361 | Methods and systems for communication from an exterior of a location Methods and systems for allowing communication between an exterior and an interior of a location, or a person associated with the location. A device positioned exterior to the location is connected to a communications system of the location. The device includes a si... | 08/01/2006 |
| 7065196 | Entrance intercom system An entrance intercom system comprises the following elements. A data base is applied to store the resident codes, the phone numbers and the identity recognizing codes of the residents. A communication module is coupled with public switch telephone networks to provid... | 06/20/2006 |
| 7046774 | Intercom apparatus An intercom apparatus has a main line connecting intercom master stations in respective residential rooms. Each master station has a terminal unit which is separate from and removable from the master station, so that the terminal unit can be removed according to nee... | 05/16/2006 |
| 7023975 | Privacy mode system and method for home network telephone A system and method are provided for controlling communications privacy in a Home Network telephone system. The method comprises: using a gateway to send and receive calls on at least one external telephone line; supplying privacy and public mode bridging options; a... | 04/04/2006 |
| 7023982 | Telephone plug system A telephone plug system includes a jack body having one end adapted to be inserted into standard wall telephone jacks, having at least one receiving socket at another end adapted to receive a conventional plug which is attached to a telephone line operated device. O... | 04/04/2006 |
| 7013000 | MTA intercom feature The present invention provides a media terminal adaptor having an internal logical interface to permit communication connections to be established between ports of the MTA. ... | 03/14/2006 |
| 7003568 | Communication control method, communication control apparatus and storage medium Even if a communication is interrupted, a communication control module in a data terminal reestablish the communication without informing a communication module that the communication has been interrupted in a case where it is possible to reestablish the communicati... | 02/21/2006 |
| 6947534 | Telephone intercom methods and systems Embodiments of the present invention relate to systems and methods for providing an intercom service. In an embodiment of the present invention, an intercom service request is received. The intercom service request includes a calling number associated with a locatio... | 09/20/2005 |
| 6888934 | Vehicle intercom system A vehicle intercom system allows conversation between individuals located, respectively, inside and outside of a vehicle. The voice units are linked by a vehicle controller area network eliminating the need for independent wiring of an intercom system. ... | 05/03/2005 |
| 6882715 | Method and apparatus for communication with a gate entry controller and providing secure communication A security system and method is disclosed for use with a security gate entry system that uses a telephone or other communication system at a security gate for communication by a person seeking entry into the secure area with a residence or other unit in the secure a... | 04/19/2005 |
| 6879670 | Collective housing intercom apparatus The invention makes it possible to call a resident of collective housing even when the apartment number of the resident is unknown. A collective housing entrance substation is connected to residential master stations through a controller, and a name retrieval module... | 04/12/2005 |
| 6711238 | Parallel-connected dialing signal transmission inhibiting device for data transfer over a telephone link A parallel-connected dialing signal detection and transmission-inhibiting device is disclosed which detects dual-tone multi-frequency dialing signals across tip and ring conductors of a telephone link and switches in an a.c. load that attenuates the dialing signals ... | 03/23/2004 |
| 6674844 | System for providing modem access via an IR interface in a PBX A telephone set of a telephone system is provided with an infrared interface. This infrared interface is able to communicate with an infrared port on a local computer. The computer is configured to send data to the infrared port, and receive data from the... | 01/06/2004 |
| 6671360 | Intercom system for a building or apartment house An intercom system for a building or apartment house includes at least one main entrance station 1 which is installed at an entrance or the like of a building or an apartment house, a plurality of residential master stations 2 which are respectively insta... | 12/30/2003 |
| 6631179 | Voice and motion activated telephone A method and system for communicating without use of manual contact with a communications unit. The user approaches a communications system and can activate a communications unit by a proximity/motion detector and/or a voice activation device. The person ... | 10/07/2003 |
| 6574312 | Electronic patch panel apparatus and method of use The apparatus of the present invention comprises an electronic patch panel controller apparatus for use in environments where multiple internal handset lines share connectivity to a lesser number of external telephone lines, the control apparatus patching... | 06/03/2003 |
| 6539085 | Automatic phone line re-allocation For single line telephone service, let red/green denote a pair that is connected to the central office, and yellow/black denote an unused pair, but which also appears at the connections to the subscribers equipment. Any computer or other device that is to... | 03/25/2003 |
| 6438221 | Electronote wall mounted messaging device A wall-hung or shelf situated free-standing voice memorandum system allows an individual to record a message for another member of the household. the system can be used in connection with a household doorbell system so that at the user's choice, the syste... | 08/20/2002 |
| 6400815 | Method and apparatus for subscriber line to telephone call distribution A Network Interface Unit (38, 38', 38") routes incoming calls to, and outgoing calls from, a plurality of telephone sets (12-22) at a subscriber premises (24). The Network Interface Unit continuously monitors for incoming calls and the availability of tel... | 06/04/2002 |
| 6240171 | Call controlling apparatus and method used for an order-wire system in a communication system A call controlling apparatus for receiving input signals each including a phone number through respective communication channels and making a call. The apparatus provides a plurality of telephones corresponding respectively to the channels and a storage s... | 05/29/2001 |
| 6078653 | Integrated telephone intercommunication and alarm electronic controller A telecommunication and alarm system for connection to: a four-wire or two-wire telephone network, a two-terminal doorphone unit, and one or more alarm detectors connected in parallel COMPRISING a line and extension connection for communication with the "tip" ... | 06/20/2000 |
| 5956631 | Multiple terminal device ringing digital subscriber ISDN terminal A telephone communication system addresses calls to a particular subscriber via both a wired terminal and through the wired terminal by radio to a wireless communicator device. The wired terminal is hard wired to a telephone network and the wireless devic... | 09/21/1999 |
| 5923743 | Single-wire data distribution system and method A single-wire telephone distribution system is directed to use in passenger aircraft. It includes a set of twisted pair cables, electronics distribution boxes and repeaters. A single-wire transmission path is defined to enter and leave each distribution b... | 07/13/1999 |
| 5818918 | Personal handy phone system In a personal handy phone system, a private PHS base station is communicable with both a private PHS terminal and a public PHS terminal. The private PHS base station intermittently transmits and receives a first control signal having a first frequency in ... | 10/06/1998 |
| 5668870 | Audible signaling device for informing when a telephone line is available or in use A device is provided for connection to a shared telephone line for detecting and audibly indicating the on-hook and off-hook status of the line. The device includes sensing and changing circuitry connected to the shared telephone line for detecting a volt... | 09/16/1997 |
| 5506896 | Intercommunication system An intercommunication system for transmitting signals through a door, and having piezo transducer devices mountable on each side of the door, a matrix of analog switches connecting the piezo transducer devices to the input and output of a bridge amplifier... | 04/09/1996 |
| 5148468 | Door answering system A door answering system is described for enabling the occupant of a structure (e.g., house, apartment, etc.) to provide a pre-recorded message to a visitor who has approached the entrance of the structure. The system includes a speaker/microphone and a ca... | 09/15/1992 |
| 5125026 | Internal telephone intercom system An internal telephone intercom system including means for connecting to a dedicated telephone communication line, a plurality of telephone sets connected to the line and adapted for telephone communications with locations external to said dedicated line, ... | 06/23/1992 |
| 5040207 | Two-telephone intercom A two-telephone intercom has a simple station-call signalling system. In the preferred embodiment, each telephone is provided with its own respective signalling unit comprising (a) a dc voltage source, (b) a voltage-sensitive threshold element (preferably... | 08/13/1991 |
| 5031210 | Telephone apparatus A telephone with an inter communicating facility is disclosed. The telephone has: a condition storage unit for storing operation condition data; an operation process unit for, when the operation of a hold key is detected, making the condition storage mean... | 07/09/1991 |
| 4696030 | Patient operator intercom arrangements for magnetic resonance imaging systems A patient intercom arrangement for magnetic resonance imaging systems wherein the gradient noises are recorded and substracted from the voice plus noise signals received from the patient during scan procedures to provide clear and audible voice signals.... | 09/22/1987 |
